Column Addition vs TabTabTab

Column Addition helps students learn and practice the column addition method step by step. The app aligns the numbers automatically so students can focus on solving each column. Carrying is handled visually with animations, helping students understand how digits move from one column to the next. Students can solve randomly generated problems or enter their own addition problems. The number of digits can be adjusted, making the app useful for different skill levels. Column addition is also known as columnar addition, long addition, or longhand addition. Features: - Add 2 or 3 numbers - Each number can have 1–5 digits - Randomly generated or manually entered problems - Automatic number alignment - Visual animated carrying - Current operation for each column can be hidden - Operands of the current operation can be highlighted - Customizable interface colors - Adjustable animation speed - Different interfaces for iPhone and iPad - 25 six-piece animal jigsaw puzzles - Puzzle feature can be turned on or off Reviews and Endorsements: Fun Educational Apps: “iDevBooks educational math apps make math enjoyable and entertaining. One of my sons was struggling with math and I must say the use of iDevBooks math apps has really helped him.” Professor Tim Pelton reviewed the sister app Column Subtraction: “Because no wrong entries are allowed the app provides a passive form of positive reinforcement and your child will likely improve in both confidence and competence with respect to the procedure.” Teacher endorsement: “The Math apps by Esa Helttula allow students to practice and reinforce the specific computation strategies taught in class, with as much or as little scaffolding as necessary. They also provide individualized feedback to each student, with an immediacy that is not always possible through pencil and paper practice.” — Rita Zeni, Ecole Sandy Hill Elementary, Abbotsford, BC, Canada Other iDevBooks Math Apps: Other iDevBooks math apps include Column Subtraction, Long Multiplication, Long Division, Lattice Multiplication, Visual Multiplication Table, Fraction Math, Partial Differences Subtraction, Partial Quotients Division, Partial Sums Addition, Decimal Rounding, and more. Feedback: New ideas to make this app better are welcome. Please visit idevbooks.com to give feedback. Privacy: This app has no ads, no in-app purchases, and does not transmit user data during operation. The app also does not contain links to other apps or to the web.

!!! SHORTLISTED for the Teach Primary Awards 2026 !!! Does your child really know their multiplication facts? TabTabTab uses voice because it’s the only way to know: if the answer comes instantly, they know it by heart. If not, there’s still work to do. LEARNING BACKED BY RESEARCH: • Built on spaced repetition (SM-2) and interleaved practice, the most effective techniques for long-term memory • Practice adapts to your child’s real mistakes • Tricky facts come back more often • Secure facts are reviewed at just the right time 3 MINUTES A DAY A session takes about 3 minutes and around 20 questions. Perfect for homework, a quick review before a test, or a simple daily routine. SEE REAL PROGRESS Not a generic score: see exactly which facts are secure, which still need work, and how your child’s fluency changes over time — and share it as an image. PRIVACY FIRST Speech is processed on the device: no audio ever leaves it. No account, no ads, no subscription. ONE PURCHASE Free to try. Then a single purchase, yours forever. Each child gets their own profile and progress. NOW ON IPAD TabTabTab now works on iPad as well as iPhone. 3 minutes a day. Real progress.